Add unit test case

Author: kamil-tekiela

ext/mysqli/tests/gh15432.phpt

@@ -0,0 +1,69 @@
+--TEST--
+GH-15432 PHP crashes when processing a MySQL DB query with a new Vector format introduced in MySQL 9.0
+--EXTENSIONS--
+mysqli
+--SKIPIF--
+<?php
+require_once 'connect.inc';
+if (!$link = @my_mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
+    die(sprintf("skip Can't connect to MySQL Server - [%d] %s", mysqli_connect_errno(), mysqli_connect_error()));
+}
+
+if ($link->server_version < 90000) {
+    die("skip MySQL 9.0.0+ needed. Found [".
+        intval(substr($link->server_version."", -5, 1)).
+        ".".
+        intval(substr($link->server_version."", -4, 2)).
+        ".".
+        intval(substr($link->server_version."", -2, 2)).
+        "]");
+}
+?>
+--FILE--
+<?php
+require 'connect.inc';
+mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+
+$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket);
+
+$expected = '00000040000040400000a040';
+
+mysqli_query($link, "DROP TABLE IF EXISTS test");
+mysqli_query($link, "CREATE TABLE test(vectorfield VECTOR)");
+mysqli_query($link, 'INSERT INTO test VALUES (TO_VECTOR("[2, 3, 5]"))');
+
+// Textual protocol
+$result = mysqli_query($link, "SELECT vectorfield FROM test")->fetch_column();
+$value = bin2hex($result);
+if($value !== $expected) {
+    printf("[001] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($value), $value);
+}
+
+// Binary protocol
+$result = $link->execute_query("SELECT vectorfield FROM test")->fetch_column();
+$value = bin2hex($result);
+if($value !== $expected) {
+    printf("[002] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($value), $value);
+}
+
+// Testing inverse to make sure the value hasn't been changed
+$expected = '[2.00000e+00,3.00000e+00,5.00000e+00]';
+$result = $link->execute_query("SELECT VECTOR_TO_STRING(0x". $value .")")->fetch_column();
+if($result !== $expected) {
+    printf("[002] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($result), $result);
+}
+
+echo "OK";
+?>
+--CLEAN--
+<?php
+require_once 'clean_table.inc';
+?>
+--EXPECT--
+OK